Find a polar equation for the conic described.The hyperbola with a focus at the pole and transverse axis endpoints 
and 
A. r = 
B. r = 
C. r = 
D. r = 
Answer: B
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Write the number in words.64,568,009
A. Sixty-four million, five hundred thousand, sixty-eight hundred, nine B. Sixty-million, five thousand sixty-eight hundred, nine C. Sixty million, forty-five thousand, sixty-eight hundred and nine D. Sixty-four million, five hundred sixty-eight thousand, nine
Solve the equation by completing the square. Express any complex numbers using i notation.x2 + 4x - 16 = 0
A. x = ±2
B. x = -2 ± 2
C. x = 2
± 2
D. x = -2 ± 2
Solve the problem.A building 250 feet tall casts a 50 foot long shadow. If a person stands at the end of the shadow and looks up to the top of the building, what is the angle of the person's eyes to the top of the building (to the nearest hundredth of a degree)? (Assume the person's eyes are 5 feet above ground level.)
A. 78.69° B. 78.47° C. 78.22° D. 11.78°
Find the expected value of the probability density function to the nearest hundredth.f(x) = 4x-5; [1, ?)
A. 1.33 B. 1.67 C. 1.00 D. 0.80